The basic requirements for range extender engines are low cost, compact dimensions, high specific power, good efficiency, low pollutant emission levels, excellent NVH behavior. For a power rate lower than 30 kW, it is very difficult to find an off-the-shelf engine meeting all the requirements listed above, so that a new generation of dedicated engines is under development. Following a preliminary theoretical work presented in 2012, the current paper reviews the design process and the first experimental tests carried out on a novel 2-stroke GDI single-cylinder engine, rated at 30 kW at 4500 rpm, featuring a patented induction valve and a piston pump for scavenging. A prototype has been designed with the support of CFD simulations, then built and tested at the BRC laboratories, in Cherasco (Italy).
Modeling and Experimental Investigation of a 2-Stroke GDI Engine for Range Extender Applications / Mattarelli, Enrico; Rinaldini, Carlo Alberto; P., Baldini. - In: SAE TECHNICAL PAPER. - ISSN 0148-7191. - ELETTRONICO. - 1:(2014), pp. 0-0. (Intervento presentato al convegno SAE 2014 World Congress and Exhibition tenutosi a Detroit, MI, usa nel 8-10 Aprile 2014) [10.4271/2014-01-1672].
Modeling and Experimental Investigation of a 2-Stroke GDI Engine for Range Extender Applications
MATTARELLI, Enrico;RINALDINI, Carlo Alberto;
2014
Abstract
The basic requirements for range extender engines are low cost, compact dimensions, high specific power, good efficiency, low pollutant emission levels, excellent NVH behavior. For a power rate lower than 30 kW, it is very difficult to find an off-the-shelf engine meeting all the requirements listed above, so that a new generation of dedicated engines is under development. Following a preliminary theoretical work presented in 2012, the current paper reviews the design process and the first experimental tests carried out on a novel 2-stroke GDI single-cylinder engine, rated at 30 kW at 4500 rpm, featuring a patented induction valve and a piston pump for scavenging. A prototype has been designed with the support of CFD simulations, then built and tested at the BRC laboratories, in Cherasco (Italy).
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